Advanced Synthesis & Catalysis,
Год журнала:
2023,
Номер
366(3), С. 457 - 464
Опубликована: Дек. 9, 2023
An
arylation
of
anions
active
methylene
compounds
with
aryl
halides
provides
an
access
to
synthetically
versatile
α-arylated
1,3-diketones,
β-keto
esters,
nitriles,
β-cyano
etc.
Previously,
these
C−C
cross-coupling
reactions
have
been
accomplished
only
using
transition
metal-based
catalysts.
Herein,
we
demonstrate
that
arylations
can
be
successfully
realized
under
catalyst-free
conditions
employing
the
electron
donor-acceptor
(EDA)
complex
photoactivation
strategy.
The
protocol
was
further
optimized
for
a
semi-one
pot
synthesis
indole
derivatives
via
intramolecular
coupling.
Cell Reports Physical Science,
Год журнала:
2024,
Номер
5(6), С. 102009 - 102009
Опубликована: Май 29, 2024
Toward
the
development
of
sustainable
resources,
degradation
lignin
presents
an
opportunity
for
valorization
biomass
into
valuable
chemicals
and
fuels.
In
this
study,
we
develop
approach
utilizing
2-bromo-anthraquinone
(2-Br-AQN)
as
a
green
cost-effective
organic
photocatalyst.
This
methodology
succeeds
in
degrading
six
different
sources
native
under
visible-light
conditions.
The
process
follows
redox-neutral
pathway,
eliminating
requirement
additional
oxidants,
bases,
transition
metals.
characteristic
enhances
environmental
friendliness
process,
making
it
more
sustainable.
Mechanistic
studies
density
functional
theory
(DFT)
calculations
suggest
that
reaction
involves
hydrogen-bond-promoted
proton-coupled
electron
transfer
(PCET)
process.
Chemical Science,
Год журнала:
2024,
Номер
15(32), С. 12900 - 12905
Опубликована: Янв. 1, 2024
We
present
a
novel
photo-induced
approach
that
does
not
rely
on
transition
metals
or
photosensitizers
to
drive
C–C
and
C–N
σ-bond
metathesis
reactions.
This
method
enables
the
cross-coupling
of
tertiary
amines
with
α-diketones.
Advanced Synthesis & Catalysis,
Год журнала:
2023,
Номер
366(3), С. 457 - 464
Опубликована: Дек. 9, 2023
An
arylation
of
anions
active
methylene
compounds
with
aryl
halides
provides
an
access
to
synthetically
versatile
α-arylated
1,3-diketones,
β-keto
esters,
nitriles,
β-cyano
etc.
Previously,
these
C−C
cross-coupling
reactions
have
been
accomplished
only
using
transition
metal-based
catalysts.
Herein,
we
demonstrate
that
arylations
can
be
successfully
realized
under
catalyst-free
conditions
employing
the
electron
donor-acceptor
(EDA)
complex
photoactivation
strategy.
The
protocol
was
further
optimized
for
a
semi-one
pot
synthesis
indole
derivatives
via
intramolecular
coupling.
